Ads
related to: precious stones types and meanings a-ztemu.com has been visited by 1M+ users in the past month
gemselect.com has been visited by 10K+ users in the past month
Search results
Results from the WOW.Com Content Network
This is a list of gemstones, organized by species and types. Minerals. There are over 300 types of minerals that have been used as gemstones. Such as: A–B
Gemstone. Group of precious and semiprecious stones—both uncut and faceted—including ( clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or ...
Logan Sapphire. Star of Bombay, given to Mary Pickford by Douglas Fairbanks, Sr. Star of India. Stuart Sapphire. Black Star of Queensland. Star of Adam, with a weight of 1,404.49 carats (280.898 g), it is the largest star sapphire in the world. Queen Marie of Romania Sapphire.
Maine Mineral and Gem Museum. Malachite. Marlborough gems. Metal-coated crystal. Moissanite. Moldavite. Moonstone (gemstone) Morganite (gem) Musgravite.
Topaz is a gemstone. In cut and polished form, it is used to make jewelry or other adornments. Lower quality topaz is commonly used as an abrasive material due to its hardness and it is used to produce refractory materials for high temperature environments. [ 7] Topaz can be used as a flux in steel production. [ 23]
Perhaps 14th century. An engraved gem, frequently referred to as an intaglio, is a small and usually semi-precious gemstone that has been carved, in the Western tradition normally with images or inscriptions only on one face. [1] The engraving of gemstones was a major luxury art form in the ancient world, and an important one in some later periods.
Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a geoscience and a branch of Stoneology and mineralogy. Some jewelers (and many non-jewelers) are academically trained gemologists and are qualified to identify and evaluate gems. [ 1][ 2] Examining a pink sapphire under a gemmological microscope.
A purple-pink star sapphire displaying asterism in a platinum ring. An asterism (from Ancient Greek ἀστήρ (astḗr) 'star' and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone. It can appear when a suitable stone is cut en cabochon (i.e. shaped and polished, not faceted ). A gemstone that exhibits this ...
Ads
related to: precious stones types and meanings a-ztemu.com has been visited by 1M+ users in the past month
gemselect.com has been visited by 10K+ users in the past month